zantac. it's strong, just one pill can knock out the burn. it's fast, the speed you need for heartburn relief. and it lasts, up to 12 hours. so let them turn up the heat. you can stop that heartburn cold: (sssssssss!!!) zantac. >>> kids across the country are returning to school this week, and that has some of the nation's top educators focusing on school bullying. it's a problem that increasingly takes many foorms including verbal and physical harassment, even cyber bullying and now teachers and students are taking a tougher stand. here's nbc's tom costello. >> reporter: it was last january's suicide of 15-year-old phoebe prince in massachusetts that many believe was the ultimate example of school bullying. having just emigrated from ireland, phoebe killed herself after being tormented for months by six fellow students now facing felony xharncharges. >> called her names, followed her home, smart remarks and dirty looks. >> reporter: across the country principle pals, tea principal, teachers and psychologists say something has changed in amer